Pinnipeds dabbobi masu shayarwa: wani janar Siffar

Detachment pinnipeds - wani karamin rukuni, lambobi game da 30 jinsin. Akwai uku iyalan:

• gaskiya like.
• eared like.
• walruses.

Carnivorous dabbobi rayuwa mafi yawa a cikin ruwa. A ƙasar ne a wani rai lokaci.

Janar halaye

Kamar yadda aka ambata riga, da wakilan da wannan kungiyar - shi walruses kuma like. Bayyana su janar halaye. Dabbobi masu shayarwa pinnipeds - a wajen manyan dabbobi tare da wani matsakaicin nauyi 3.5 ton na jiki da kuma jiki tsawon har zuwa 6 mita. Elongated taso keya jiki tapering zuwa ga shugaban da wutsiya. Neck m m, fãce eared like. Mafi yawa daga cikin wata gabar jiki a ɓõye, a cikin akwati jakar. M leathery membrane haɗu da yatsunsu extremities, forming fins. Duk wannan shi ne hali na wadannan dabbobi masu shayarwa (pinnipeds detachment). Daban-daban jinsin dabbobi fika unequally ci gaba.

Yatsunsa ana amfani ne kawai ga motsi. Tare da Hind flippers dabbobi oscillate. A wannan yanayin, babban nauyin da dama a kan murdede raya na jiki. A gaban flippers daidaita babbar akwati da kuma aiki da matuƙin jirgin ruwa. Wadannan pinnipeds ãyõyi nuna karbuwa da ruwa yanayi.

A fata ne lokacin farin ciki da mutuncin gashi. Subcutaneous mai Layer dogara kare daga hypothermia. Hakora a cikin wannan aji na dabbobi nufi kawai ga rike da fahimtar abinci. Zagayayyen kwanya babban, babban kwakwalwa. The m bawo ne ba ya nan, amma suna da mai kyau kunne. Lokacin da masu niyyar baftisma cikin ruwa surface na da auditory bude aka quntata saboda da tsokoki. Pinnipeds iya fitowa kawai audible sautuna. olfactory gabobin suna ci gaba mai gamsarwa a. Vision ne kusan ƙarancin. Vibrissae, waxanda suke da dogon gashin, ne babban jiki na touch dabbobi.

Foraging, pinnipeds dabbobi masu shayarwa suna iya na dogon lokaci a cikin ruwa. The girma daga cikin huhu ne mafi girma fiye da na ƙasar-tushen da yara, da kuma samar da cikakken exhalation da inhalation na sabon rabo daga iska. Elasticity na huhu nama, pleural thickening, ɓullo da musculature.

Pinnipeds ciyar a kan crustaceans, molluscs, teku tsuntsaye, kifi. Abinci da aka samar kawai a cikin zurfin ruwa.

Walruses kuma like fi son ka huta a kan kankara floes. Pinnipeds ne gregarious salon. A mafi girma yawa na dabbobi suna kafa a lokacin farko na kiwon waddan da kuma molting. Wasu fi son zama a gida, wasu ƙaura.

ne halitta makiya:

• marine leopards.
• iyakacin duniya Bears.
• manyan sharks.
• kisa Whales.

Pinnipeds dabbobi masu shayarwa zo a bakin ko kankara ga ma'abota kuma procreation. A jima'i balaga zo shekaru uku. Haife yafi na daya maraƙi sau daya a shekara. jariri ta jiki da aka rufe da lokacin farin ciki Jawo, wanda yake a cikin launi da kuma tsari ne daban-daban daga Jawo na manya. A 'yan makonni da Jawo na ƙaramin tsara da aka canza. Babies girma da sauri, ciyar a kan madarar uwarsa mai. Bayan karshen ciyar da cub zama m. Pinnipeds rayu har zuwa shekaru 40.

walruses

Dabbar walrus - shi ne daya daga cikin mafi girma a dabbobi masu shayarwa pinnipeds aji. Wakilai daga wannan aji za a iya samu a cikin Chukchi Sea, da Duniya tarin tsiburai na Franz Josef Land, kashe bakin tekun na tsibirin na Novaya Zemlya, a cikin m tekuna na Arctic Ocean.

description

Walruses mallaka iko giwa 2-4 kg kowane, wanda aikin sama da danko da 50 cm. The mace suna finer kuma gajeru ba. Babban aiki shi ne samar da abinci giwa ta loosening yashi ko silt kasa surface. Walruses a tsawon na iya zama har zuwa 4 m, kuma ku auna nauyi 1.5 ton. Duk da wannan nauyi, shi ne agile da nimble dabbobi. All dabbobi masu shayarwa jiki rufe m da sparse m gashi. Subcutaneous mai kauri har zuwa 10 cm dogara hana supercooling. Walruses ba daskare a cikin ruwa na garin kankara, kuma ba su da tsoron kaifi frosts. Saboda gaban subcutaneous iska sacs, wanda aka haɗa tare da pharynx, ba su nutse a cikin ruwa a lokacin da wani sauti barci. A kan lebe na sama yana mai kauri, m da kuma m, suna located in da dama layuka na tsaye bakin ramin (hankula). Gane wari na gabatowa hadari. Suna da matalauta gannai. External kunnuwa sun bata. Kafafen hancinsa da kunne ramukan an rufe tam lokacin da masu niyyar baftisma cikin ruwa. Ƙege taimaka dabbobi don nutse har da yin iyo. Hind flippers taimaka a gina a kan ƙasa surface da kankara.

hanyar rayuwa

A kan kankara, ko a kan shorelines tsara rookeries. A hali na hatsari, tsoro, tanã fita daga su saba wurare da kuma, kawar da juna, ya shiga cikin ruwa, da barin gawawwakin matattu dabbobi.

haifuwa

Walruses asali daga shekaru na shekaru biyar, da zarar kowane shekaru uku ko hudu. Akwai bayyana a dabbar walrus cub. The mace ciyarwa da shi, muddin ba girma canines (giwa). Ta ne mai matukar kula da uwa tasa, da kuma taba barin ka baby a hadarin.

barazana

A gagarumin raguwa a yawan kawo sunayensu uncontrolled kama kifi dabbar walrus. Tun da hamsin hamsin na karshe karni su neman wani ban. An togiya aka sanya kawai ga gida yawan (Yakuts, Chukchi), wanda lasisi yarda da farautar dabbar walrus domin ya sadu sirri bukatun. Wasu jinsunan dabbar walrus suna kunshe a cikin Red Littãfi a matsayin miyagun dabbobi masu shayarwa.

iyali Tuleneva

Elephant - shi ne mafi girma wakilin tsakanin pinnipeds, like da suke zaune a cikin sub-Antarctic da subarctic tekuna. Sunan ya samu godiya ga leathery jakar, wanda aka located a cikin hanci na maza. Mai ransa ya ciyar a cikin ruwa hatimi. Maza ku auna nauyi fiye da ton uku kuma suna da wani tsawon 6.5 m. The nauyi da girman da mace ya dogara da irin abin da suka rababbe.

Pinnipeds dabbobi masu shayarwa - wannan irin kama kifi samar. Konkoma karãtunsa fãtun amfani a yi na takalma da kuma tufafi. Nama ne a ci ba. Konkoma karãtunsa fãtun na matasa dabbobi aka yi amfani a matsayin albarkatun kasa ne. Special bukatar Jawo like.